stm32f3 discovery board case
thingiverse
A Case for the stm32f3-Discovery-Board (Might work as well for the f4 board, I don't have one so I can't measure)
Download Model from thingiverse
With this file you will be able to print stm32f3 discovery board case with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on stm32f3 discovery board case.